Yes, it is worth. Why? Simply because this system will be part of a proprietary system, but I want to provide a gate for developers to write their own drivers if they want/need to use some other database such as Oracle or SQLite or Postgre, etc. I've thought of the Active Record pattern before writing the actual system and I've decided that an array-based library is faster and less memory consuming than an object-based one (it's enough that the whole system is almost fully object oriented).

So why don't I use some free software (like an ORM or any other library from the internet), you would ask. Simply because people will pay for this software. And free software doesn't really work in a proprietary system. I use my own license, I have taken time to create the software, and I'm not risking getting sued over some stupid library (and this is very interpretable, believe me). The only thing that concerns me right now is that the system will be extensible - so if a developer wants to take a component or a library and plug it into the system, he can do just that without having to change the default libraries - which will be updated from time to time.

So, this is some kind of a review I need from other 'colleagues'

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